Italian Environment Minister Corrado Clini said there was evidence that liquid was leaking from the ship, but he could not confirm whether the fluid was fuel.

BBC: Costa Concordia cruise ship captain 'went off course'

While backup generators were on hand in some places, generators had to be brought to storage areas for fuel and de-icing fluid.

WSJ: How Snow (and Libyan Soldiers) Led to Airport Logjams

The fluid shape smooths airflow over the car, which keeps it stable and improves fuel economy.

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